شماره ركورد كنفرانس :
3770
عنوان مقاله :
An experimental investigation on the visco-elastic behavior of PP/ASF/CaCO3 hybrid nano-composites
پديدآورندگان :
Shahbazi A. arman_ash90@yahoo.com MSc student, Department of Manufacturing Engineering, Faculty of Mechanical Engineering, University of Tabriz; , Faraji Kalajahi P. MSc student, Department of Manufacturing Engineering, Faculty of Mechanical Engineering, University of Tabriz , Shelesh-Nezhad K. Associate Professor, Department of Manufacturing Engineering, Faculty of Mechanical Engineering, University of Tabriz , Arsalani N. Professor, Faculty of Chemistry, University of Tabriz
كليدواژه :
polypropylene , hybrid nanocomposite , aramid short fiber , CaCO3 nanoparticles , Dynamic Mechanical Thermal analysis.
عنوان كنفرانس :
چهارمين كنفرانس بين المللي دو سالانه مكانيك جامدات تجربي
چكيده فارسي :
In present research viscoelastic behavior of Polypropylene/Aramid Short Fiber (ASF) /CaCO3 hybrid nanocomposites were investigated experimentally using dynamic mechanical thermal analysis (DMTA). At first stage, polypropylene, hydrolyzed ASF and CaCO3 nanoparticles were melt-mixed. Following, the DMTA standard specimens prepared by compression molding using hot and cold presses. DMTA standard tests were accomplished in double cantilever flexural mode. Influence of different reinforcements on the glass transition temperature, storage and loss moduli and damping factor of composites were studied.Results demonstrated a significant enhancement in storage moduli of nanocomposites in a wide range of temperature. Incorporation of ASF decreased glass transition temperature (Tg) of PP. Conversely, Tg was increased by addition of CaCO3 nanoparticles. In addition, incorporation of nano-CaCO3 elevated the loss factor and absorbed energy.
